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arXiv · hep-th/0612027

Nonperturbative corrections to 4D string theory effective actions from SL(2,Z) duality and supersymmetry

Daniel Robles-Llana·Martin Rocek·Frank Saueressig·Ulrich Theis·Stefan Vandoren
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Abstract

We find the D(-1) and D1-brane instanton contributions to the hypermultiplet moduli space of type IIB string compactifications on Calabi-Yau threefolds. These combine with known perturbative and worldsheet instanton corrections into a single modular invariant function that determines the hypermultiplet low-energy effective acction.

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Daniel Robles-Llana, Martin Rocek, Frank Saueressig, Ulrich Theis, Stefan Vandoren. 2007-04-04. Nonperturbative corrections to 4D string theory effective actions from SL(2,Z) duality and supersymmetry. https://doi.org/10.1103/physrevlett.98.211602

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